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Kreyo Documentation

Spanish e-invoicing infrastructure for developers
Quickstart API Reference

Products

Section titled “Products”
VeriFactu

Real-time AEAT submission API with SHA-256 hash chaining and XMLDSig signing.

Learn more → FacturaE

Generate and sign FacturaE 3.2.2 XML invoices. Submit directly to FACe.

Learn more → Extract

AI-powered invoice data extraction with NIF validation.

Learn more → PDF

Generate pixel-perfect PDFs from HTML, Markdown, or built-in templates.

Learn more →